Sawn from locally grown trees, larch and Douglas fir are tough and naturally durable softwoods, ideally suited to rustic barn conversions. Sold ‘green’ or freshly sawn this type of cladding is our most cost effective solution.
Style
Rustic
Profiles
Feather-edge and waney-edge
Source
England and Wales
Beware
Shrinkage
Green British Larch / Douglas Fir Cladding
Green British Larch / Douglas Fir Cladding
Green British Larch / Douglas Fir Cladding
Green British Larch / Douglas Fir Cladding
Green British Larch / Douglas Fir Cladding
Green British Larch / Douglas Fir Cladding
Green British larch cladding from Vastern Timber
Appearance
British larch / Douglas fir ranges in colour from pinky-brown in the heartwood, to cream in the sap band. Boards will contain regular knots. Cladding boards may cup a little as they shrink.
Weathering
Larch / Douglas fir weathers relatively slowly, often taking two years to reach a silver-grey patina. Larch is quite consistent and is not reactive, and as such, will weather relatively evenly. Northerly elevations may weather to a darker grey than those facing South.
Desired service life
Occasionally wet 30 yrs. Frequently wet 15 yrs.
Movement class
Large
Resistance to impact
High
Working properties
Good workability. Takes fixings satisfactorily although can be prone to splitting.
Density
570 – 650 Kg / m3
Extractives
British larch contains resin rather than oil or tannin. The resin is sticky and may ooze from boards for a few years after installation. The resin is not reactive.
How to fix
Pre-drill and hand nail with stainless steel nails through the face or use a first fix nail gun. Only nail each board once per batten.
For more information, visit the resource centre
Batten type
50mm thick x 50mm wide treated softwood.
Batten spacing
400 – 600mm
Nail type
Stainless steel only. 65mm / 75mm ring shank nails.
When to fix
Autumn and winter months. Installing fresh sawn larch during warm months is not advisable.
Resistance to fixing
Medium
We produce timber cladding to the profile of your choice. View our full range of cladding profiles
We recommend the following profiles for British larch / Douglas Fir.
While the utmost care has been taken to provide accurate information, Vastern Timber shall not be held responsible for any consequences arising from any errors or omissions on this website nor for any damages resulting from the use of the information.